CN109356119A - Let out slot aerator structure - Google Patents
Let out slot aerator structure Download PDFInfo
- Publication number
- CN109356119A CN109356119A CN201811407176.3A CN201811407176A CN109356119A CN 109356119 A CN109356119 A CN 109356119A CN 201811407176 A CN201811407176 A CN 201811407176A CN 109356119 A CN109356119 A CN 109356119A
- Authority
- CN
- China
- Prior art keywords
- top surface
- aerator
- aerator structure
- sides
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
Abstract
The present invention relates to water conservancy and hydropower air entraining facilities fields, especially one kind is in the case where operating head polishing changes greatly, still good aeration effect may be implemented lets out slot aerator structure, including left hand wall, the right wall and the bottom plate being set between left hand wall and the right wall, aerator structure is provided on the bottom plate, in the top surface of the aerator structure, it is higher than close to the side wall top surface of two sides side wall close to the center top surface at aerator symmetrical configuration center.The present invention is according to water flow feature, let out the structural shape that the aerator bank height in slot takes " two sides are high, intermediate low ", adapt to its flow rate profiles, the angle of its overflow generated and bottom plate has the characteristics that " two sides are big, intermediate small ", the section downstream flowing that the small part of intermediate angle can push two sides angle big, to solve flow backwards phenomenon, effective aerated cavity is increased, ideal aeration effect is reached.Present invention is particularly suitable for operating head polishings to change in application greatly.
Description
Technical field
The present invention relates to water conservancy and hydropower air entraining facilities field, especially one kind to let out slot aerator structure.
Background technique
With the continuous development of hydropower technology, the construction in the big library of large quantities of high dams is welcome, reservoir has water level height, disappears
The features such as depth is big is fallen, proposes the big requirement in operating head polishing section to release floodwatering facility during construction and operation.Common bottom
Portion's ventilation facility refers to that setting chooses bank or falls bank on flow-passing surface, so that water flow is detached from bottom boundary and forms cavity, by air
Air water interface mixes air, its main feature is that small to water flow interference, fluidised form is smooth, and emphasis solves the anti-of discharge structure bottom plate
Erosion.
Conventional continuous aerator structure is generally able to satisfy aeration requirement when operating head polishing is higher, flow velocity is larger；But
Operating head polishing is slightly lower, when being especially in requirement setting left and right air entraining facilities critical flow velocity (30m/s), is easy to appear flow backwards
Phenomenon (backwater phenomenon), it is difficult to reach ideal aeration effect.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind in the case where operating head polishing changes greatly, still can be with
That realizes good aeration effect lets out slot aerator structure.
The technical solution adopted by the present invention to solve the technical problems is: letting out slot aerator structure, including left hand wall, the right
Wall and the bottom plate being set between left hand wall and the right wall are provided with aerator structure, the aerator structure on the bottom plate
Top surface in, close to two sides side wall side wall top surface be higher than close to aerator symmetrical configuration center center top surface.
Further, the center top surface shape of the aerator structure is V-shape, the V-shape opening direction and water
It flows contrary.
Further, passing through bevel structure transition between the center top surface and side wall top surface.
Further, the side wall top surface is symmetrically disposed on the two sides of aerator structure.
Further, including aeration well construction, the aeration well construction is set to left hand wall and the right wall side wall surface
On.
Further, the aeration well construction abutting aerator structure chooses bank terminal point.
The beneficial effects of the present invention are: letting out the water flow in slot close to two sides side wall for technical solution of the present invention
The position at place, is constrained by side wall, and viscous force is generated between side wall and water flow, causes to let out slot two sides flow velocity low compared with middle part.The present invention
According to water flow feature, the structural shape that the aerator bank height in slot takes " two sides are high, intermediate low " is let out, its velocity flow profile song is adapted to
Line, the angle of the overflow and bottom plate that generate have the characteristics that " two sides are big, intermediate small ", and the small part of intermediate angle can push
Angle big section downstream flowing in two sides increases effective aerated cavity, reaches ideal aeration to solve flow backwards scene
Effect.Present invention is particularly suitable for operating head polishings to change in application greatly.
Detailed description of the invention
Fig. 1 is that the present invention removes the structural schematic diagram after the wall of the right.
In the figure, it is marked as bottom plate 1, aerator structure 2, choosing bank starting point 21, choosing bank terminal 22, side wall top surface 23, central term
Face 24, aeration well construction 3, left hand wall 4.
Specific embodiment
The following further describes the present invention with reference to the drawings.
It is as shown in Figure 1 to let out slot aerator structure, including left hand wall 4, the right wall and be set to left hand wall 4 and the right wall it
Between bottom plate 1, aerator structure 2 is provided on the bottom plate 1, in the top surface of the aerator structure 2, close to two sides side wall
Side wall top surface 23 is higher than close to the center top surface 24 of 2 symmetrical centre of aerator structure.
Existing aerator, as soon as typically just simple is higher by the bank structure of bottom plate 1, this bank structure itself, and
Without corresponding structure optimization, which results in such defects: in the lower situation of flow velocity, if aerator bank height is lower,
Its water flow flip shot distance is insufficient, and the aerated cavity length and height of formation are smaller, cannot reach ideal aeration effect；If mixed
Gas Kan Kangao increases, and chooses angle and becomes larger, and overflow drop point will also become larger with bottom plate angle, but once occurring being easy for when flow velocity is lower
There is flow backwards phenomenon, cannot also form effective aerated cavity, ideal aeration effect is not achieved.The present invention is very cleverly same
When solve the problems, such as that above two state exists, due to being higher than using close to the side wall top surface 23 of two sides side wall close to mixing
The center top surface 24 of 2 symmetrical centre of gas bank structure, the i.e. structural shape of " two sides are high, intermediate low ", optimize flow rate profiles,
When flow velocity is low, it can converge and be flowed out by the low spot close to 2 symmetrical centre of aerator structure, be not in flow backward；Work as stream
When speed is high, the top surface of entire aerator structure 2 can be passed through and form ideal aeration effect.The present invention efficiently solves low stream
In fast situation, aerator flow backwards problem also increases effective aerated cavity, has reached ideal aeration effect, to solve to let out
The corrosion protection problem of water buildings bottom plate.
In order to which the structure of the center top surface 24 to aerator structure 2 advanced optimizes, so that more preferably effect is obtained,
It is preferred that such scheme: 24 shape of center top surface of the aerator structure 2 is V-shape, the V-shape opening direction and water flow
It is contrary.As shown in Figure 1, the center top surface 24 of V-shape can converge water flow in low flow velocity well, not only prevent down
The appearance of filling, also ensuring water flow, smoothly flip shot is flowed out.
For the center top surface 24 of above-mentioned V-shape, in order to realize the smooth transition of structure top surface, the preferably described center
Pass through bevel structure transition between top surface 24 and side wall top surface 23.As shown in Figure 1, bevel structure transition also can be very good to guide
Water flow flows between center top surface 24 and side wall top surface 23, ensure that the ride comfort of flowing.It is adapted with structure of the invention
, the preferably described side wall top surface 23 is symmetrically disposed on the two sides of aerator structure 2.For aeration, such side can choose
Case: including aeration well construction 3, the aeration well construction 3 is set in 4 side wall surface of left hand wall.It is preferred that the aeration well construction 3 is tight
Patch aerator structure 2 is chosen at bank terminal 22.
Design of the invention, the characteristics of cleverly combining water flow, let out the aerator bank height in slot take " two sides are high, in
Between it is low " structural shape, adapt to its flow rate profiles, the angle of the overflow and bottom plate that generate has that " two sides are big, intermediate
It is small " the characteristics of, the section downstream flowing that the small part of intermediate angle can push two sides angle big, to solve flow backwards
Scene increases effective aerated cavity, reaches ideal aeration effect, has very wide market promotion prospect.
Claims (6)
1. slot aerator structure is let out, including left hand wall (4), the right wall and the bottom plate being set between left hand wall (4) and the right wall
(1), aerator structure (2) are provided on the bottom plate (1), it is characterised in that: in the top surface of the aerator structure (2), lean on
The side wall top surface (23) of nearly two sides side wall is higher than close to the center top surface (24) of aerator structure (2) symmetrical centre.
2. letting out slot aerator structure as described in claim 1, it is characterised in that: the center top surface of the aerator structure (2)
(24) shape is V-shape, and the V-shape opening direction is opposite with water (flow) direction.
3. letting out slot aerator structure as claimed in claim 2, it is characterised in that: the center top surface (24) and side wall top surface
(23) pass through bevel structure transition between.
4. as claimed in claim 1,2 or 3 let out slot aerator structure, it is characterised in that: the side wall top surface (23) symmetrically sets
It is placed in the two sides of aerator structure (2).
5. as claimed in claim 1,2 or 3 let out slot aerator structure, it is characterised in that: described including aeration well construction (3)
Aeration well construction (3) is set in left hand wall (4) and the right wall side wall surface.
6. letting out slot aerator structure as claimed in claim 5, it is characterised in that: the aeration well construction (3) is close to aerator
Structure (2) is chosen at bank terminal (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811407176.3A CN109356119A (en) | 2018-11-23 | 2018-11-23 | Let out slot aerator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811407176.3A CN109356119A (en) | 2018-11-23 | 2018-11-23 | Let out slot aerator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109356119A true CN109356119A (en) | 2019-02-19 |
Family
ID=65338545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811407176.3A Pending CN109356119A (en) | 2018-11-23 | 2018-11-23 | Let out slot aerator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109356119A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453660A (en) * | 2019-07-31 | 2019-11-15 | 中国三峡建设管理有限公司 | A kind of big cross section polymorphic structure one-time-concreting molding construction device and method |
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| CN200946261Y (en) * | 2006-06-12 | 2007-09-12 | 河海大学 | Differential type flip bucket for mixing air |
| CN102828495A (en) * | 2012-06-28 | 2012-12-19 | 河海大学 | Water-wing control method of side aerator and flat outflow side aerator |
| RU2011140562A (en) * | 2011-10-06 | 2013-04-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Московский государственный строительный университет" (МГСУ) | VORTEX DISCHARGE |
| CN103774625A (en) * | 2014-01-22 | 2014-05-07 | 河海大学 | Tool ridge type narrow seam energy dissipater and energy dissipation method |
| CN204225059U (en) * | 2014-11-14 | 2015-03-25 | 中国电建集团成都勘测设计研究院有限公司 | Air entraining facilities bottom high flow rate runner |
| CN104563067A (en) * | 2014-12-17 | 2015-04-29 | 河海大学 | Method for eliminating deviation of water jet of water tongue shock wave of slot sill and auto-correcting deviation slot sill |
| CN204608733U (en) * | 2015-05-08 | 2015-09-02 | 中国电建集团成都勘测设计研究院有限公司 | The air entraining facilities of aeration backwater can be eliminated |
| CN205576867U (en) * | 2016-03-28 | 2016-09-14 | 中国电建集团西北勘测设计研究院有限公司 | Local side expands formula air entrainment facility |
| CN206408596U (en) * | 2016-12-28 | 2017-08-15 | 山东科技大学 | The double defrlector bucket energy dissipaters of narrow slit type |
| CN209429069U (en) * | 2018-11-23 | 2019-09-24 | 中国电建集团成都勘测设计研究院有限公司 | Let out slot aerator structure |
-
2018
- 2018-11-23 CN CN201811407176.3A patent/CN109356119A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946261Y (en) * | 2006-06-12 | 2007-09-12 | 河海大学 | Differential type flip bucket for mixing air |
| RU2011140562A (en) * | 2011-10-06 | 2013-04-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Московский государственный строительный университет" (МГСУ) | VORTEX DISCHARGE |
| CN102828495A (en) * | 2012-06-28 | 2012-12-19 | 河海大学 | Water-wing control method of side aerator and flat outflow side aerator |
| CN103774625A (en) * | 2014-01-22 | 2014-05-07 | 河海大学 | Tool ridge type narrow seam energy dissipater and energy dissipation method |
| CN204225059U (en) * | 2014-11-14 | 2015-03-25 | 中国电建集团成都勘测设计研究院有限公司 | Air entraining facilities bottom high flow rate runner |
| CN104563067A (en) * | 2014-12-17 | 2015-04-29 | 河海大学 | Method for eliminating deviation of water jet of water tongue shock wave of slot sill and auto-correcting deviation slot sill |
| CN204608733U (en) * | 2015-05-08 | 2015-09-02 | 中国电建集团成都勘测设计研究院有限公司 | The air entraining facilities of aeration backwater can be eliminated |
| CN205576867U (en) * | 2016-03-28 | 2016-09-14 | 中国电建集团西北勘测设计研究院有限公司 | Local side expands formula air entrainment facility |
| CN206408596U (en) * | 2016-12-28 | 2017-08-15 | 山东科技大学 | The double defrlector bucket energy dissipaters of narrow slit type |
| CN209429069U (en) * | 2018-11-23 | 2019-09-24 | 中国电建集团成都勘测设计研究院有限公司 | Let out slot aerator structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110453660A (en) * | 2019-07-31 | 2019-11-15 | 中国三峡建设管理有限公司 | A kind of big cross section polymorphic structure one-time-concreting molding construction device and method |
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